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Finding the Fourth Proportional to 298,469.52, 411,878.21 and 169,418.29

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Solution

The fourth proportional to 298,469.52, 411,878.21 and 169,418.29 is: 233,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,469.52 : 411,878.21 = 169,418.29 : x
  2. Step 2: Convert to fraction form
    298,469.52/411,878.21 = 169,418.29/x
  3. Step 3: Cross multiply
    298,469.52x = 411,878.21 × 169,418.29
  4. Step 4: Simplify right side
    298,469.52x = 69,779,702,026.46
  5. Step 5: Solve for x
    x = 69,779,702,026.46/298,469.52
  6. Step 6: Final answer
    x = 233,791.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.